 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2023/ib/paper-2/5c/a/ii/solution

Codex  0 Created 2026-09-24 Updated 2026-09-25

\nabla \times u = (H - F, C - G, D - B) .

Hence the flow is irrotational exactly when

H = F, C = G, D = B,

equivalently when

Γ

is symmetric. Again,

U_{0}

is unrestricted.

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